The key focus of the article is a rat called HeroRAT that was used to sniff out buried explosives in Cambodia. So the article is about Rats and Land Mines.
<h3>What did HeroRAT do?</h3>
HeroRat, also known as Magawa, is the name given to an African giant rat in Cambodia (which was six years old as of 2020) that was able to save many lives by detecting thirty-nine landmines.
It also detected over twenty-seven items in Cambodia that hadn't exploded. The correct answer, thus, is D.
See the link below to learn more about Rats and Land Mines:
brainly.com/question/26368251
Cannot be compelled to testify against oneself
Answer:
The acquiring of the territories gave the United States justification to send out immigrants into those territories and settle the land along the trails created by traders and trappers beforehand. These immigrants and other workers then set up the Transcontinental Railroad to facilitate trade and transport back and forth from the west coast to the east.
A main reason that the age of revolutions initially failed to achieve widespread change in some nations of Europe was because many of these failed revolutions took place in the "backyards" of their mother countries--meaning that they were easily taken down with military power.